Having the water in the toilet splash up and hit your ball sack and/or taint while taking a dump.
I ran in to the bathroom and dropped my pants just in time to unload a high pressure dump. If I didn't know better, I could have swore my dookie performed an epic cannonball from the high dive with the amount of Shitter Splatter I wiped off my sack.
The skid marks on the panties left behind from a constant camel toe.
My girlfriend came home after a long day of wearing tight workout pants. As she seductively gazed in to my eyes while pulling her pants down, my peripheral vision caught a glimpse of her crusty "camel trail" just after the suction was released from her wedged camel-toe panties.